Yeah you save a lot on living expenses by eating down at the food courts, unless what you refer to as "living" expenses includes the cost of having your stomach pumped once a week from eating a salmanella-riddled satay cat's tail.
Anyone know how much SGD you can get a stomach-pump for? Pay for 10 up front and they'll probably throw another in for free.
You won't be doing much drinking on that salary in the
City of An@l Retentivity.
You could always observe the FA's technique of starving until your next flight then gourging non-stop from gear up til down.
Learn to get your head right down into the bowl and SLURP loudly and you'll fit right in.........